* {
    margin: 0;
    padding: 0;
}

ul {
    display: flex;
    border-bottom: 2px solid #e01222;
    padding: 0 10px;
}

li {
    width: 100px;
    height: 50px;
    line-height: 50px;
    list-style: none;
    text-align: center;
}

li a {
    display: block;
    text-decoration: none;
    font-weight: bold;
    color: #333333;
}

li a.active {
    background-color: #e01222;
    color: #fff;
}